createNewCount.js

createNewKey(name,backgroundColor){
    return new Promise((resolve,reject)=>{
      this.getItems().then((data)=>{
        let tempKey = new Date().getTime();
        data[tempKey] = {
          name, //Count Name
          count:0,
          backgroundColor, // Count Background Color
          counts:[] // counts
        };
        AsyncStorage.setItem('count', JSON.stringify(data), (err,result) => {
          if(err){
            reject({err:'something went wrong!'});
          }else{
            resolve(true);
          }
        });
      });
    })
  }